Road Construction Delays on Park Roads for 2014 Season
Expect occasional 15-minute to 1-hour delays in Sequoia and Kings Canyon National Parks on weekdays only (times vary), including delays to/from the General Sherman Tree, Crystal Cave, and Grant Grove. More »
Vehicle Length Limits in Sequoia National Park (if Entering/Exiting Hwy 198)
Planning to see the "Big Trees" in Sequoia National Park? If you enter/exit via Hwy. 198, and your vehicle is longer than 22 feet (combined length), please pay close attention to vehicle length advisories for your safety and the safety of others. More »
You May Have Trouble Calling Us
We are experiencing technical problems receiving incoming phone calls. We apologize for the inconvenience. Please send us an email to SEKI_Interpretation@nps.gov or check the "More" link for trip-planning information. More »
Numerous species of conifers record the occurrence of forest fires. A fire may be recorded as a lesion in an annual ring when living cambium, usually on the margins of a catface, is injuring by the heat of the fire. Over time multiple injuries (fire scars) can occur.
Using dendrochronological crossdating methods actual calander dates can be assigned to each fire scar. These methods also mean that samples from trees dead for many decades (or centuries) can be utilized so that few living trees need to be sampled.
The dates on this ponderosa pine cross-section indicate fire scars that are recorded in the tree's annual growth rings. Reconstructions of fire regimes using this proxy data source can provide valuable information to managers and ecologists on the frequency and season of past fires. © Photo by Anthony Caprio.
Did You Know?
The General Grant Tree is the only living thing designated by Congress as a national shrine. This sequoia is a living memorial to the men and women of the United States who have given their lives in service to their country.